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    <title>Document</title>
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    <script>
        // 是筛选符合的元素并返回新数组
        var arr = [789, 99, 6, 2];
        // 选出奇数
        var newArr = arr.filter(function(value, index, array) {
            // return value % 2 !== 0;
            return value == 99;
        });
        console.log(newArr);
    </script>
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